@nick I couldn’t open your personal infos clicking on your name last time which made me think you left already. Today I can open it!
Important is to connect D3 - SDA, D4 - SDC, GND - GND and 3V3 - VIN, this is right in both pictures. Both is schematic, one for the wireing, one for the mechanical construction. No mistake!
If you read further on you will find out, that one can use other sensors, you can upload your data here and there, online you can find infos about different housings and so on. Everything can be done in different ways. What is making it one project is the software and the specified hardware you can use with it.
One easily miss some infos in the instructions, check this link:
You can find a list of sensors supported by our firmware
By the way, tubes and pipes are mentioned:
But it could say “Pipes for weather protection, HT Arc DN 75 87°” to be more clear.
Push in sensor into the pipe
Push the parts into the tube, so it’s jammed inside
I agree, the instructions are not very clear! Push the parts into the tube would be really jammed It needs to get pushed into the pipes, as I understand it.
Years ago I found this project and where so happy to understand, I can measure PM myself! There are no public measurements close to my place. It took me months before I finally had made my first sensor. Now I teached it once in a school and are planning more classes. It’s open source and open hardware which means, you are free to use it, to change it and do whatever you want with it. Anybody should be aware of the many work nessesary to build this up and keep it running.
“Wow, this project is cool! I want to build a sensor! Does pipe mean the HT arcs? I should connect the BME as shown in the wireing, even if it’s a different sensor with different pinout, right?”
You probably better check the schematic and everything else